Bumping to 0.2.3, deps to yeoman-generator 0.12.0
Bumping to 0.2.3, deps to yeoman-generator 0.12.0

narainsagar/generator-webapp-php,narainsagar/generator-webapp-php,amercier/generator-webapp-php,amercier/generator-webapp-php,amercier/generator-webapp-php,narainsagar/generator-webapp-php,snatera15/generator-webapp-material,snatera15/generator-webapp-material